( function () {
/**
 * https://github.com/google/model-viewer/blob/master/packages/model-viewer/src/three-components/EnvironmentScene.ts
 */

class RoomEnvironment extends THREE.Scene {
  constructor() {
    super();
    const geometry = new THREE.BoxGeometry();
    geometry.deleteAttribute('uv');
    const roomMaterial = new THREE.MeshStandardMaterial({
      side: THREE.BackSide
    });
    const boxMaterial = new THREE.MeshStandardMaterial();
    const mainLight = new THREE.PointLight(0xffffff, 5.0, 28, 2);
    mainLight.position.set(0.418, 16.199, 0.300);
    this.add(mainLight);
    const room = new THREE.Mesh(geometry, roomMaterial);
    room.position.set(-0.757, 13.219, 0.717);
    room.scale.set(31.713, 28.305, 28.591);
    this.add(room);
    const box1 = new THREE.Mesh(geometry, boxMaterial);
    box1.position.set(-10.906, 2.009, 1.846);
    box1.rotation.set(0, -0.195, 0);
    box1.scale.set(2.328, 7.905, 4.651);
    this.add(box1);
    const box2 = new THREE.Mesh(geometry, boxMaterial);
    box2.position.set(-5.607, -0.754, -0.758);
    box2.rotation.set(0, 0.994, 0);
    box2.scale.set(1.970, 1.534, 3.955);
    this.add(box2);
    const box3 = new THREE.Mesh(geometry, boxMaterial);
    box3.position.set(6.167, 0.857, 7.803);
    box3.rotation.set(0, 0.561, 0);
    box3.scale.set(3.927, 6.285, 3.687);
    this.add(box3);
    const box4 = new THREE.Mesh(geometry, boxMaterial);
    box4.position.set(-2.017, 0.018, 6.124);
    box4.rotation.set(0, 0.333, 0);
    box4.scale.set(2.002, 4.566, 2.064);
    this.add(box4);
    const box5 = new THREE.Mesh(geometry, boxMaterial);
    box5.position.set(2.291, -0.756, -2.621);
    box5.rotation.set(0, -0.286, 0);
    box5.scale.set(1.546, 1.552, 1.496);
    this.add(box5);
    const box6 = new THREE.Mesh(geometry, boxMaterial);
    box6.position.set(-2.193, -0.369, -5.547);
    box6.rotation.set(0, 0.516, 0);
    box6.scale.set(3.875, 3.487, 2.986);
    this.add(box6); // -x right

    const light1 = new THREE.Mesh(geometry, createAreaLightMaterial(50));
    light1.position.set(-16.116, 14.37, 8.208);
    light1.scale.set(0.1, 2.428, 2.739);
    this.add(light1); // -x left

    const light2 = new THREE.Mesh(geometry, createAreaLightMaterial(50));
    light2.position.set(-16.109, 18.021, -8.207);
    light2.scale.set(0.1, 2.425, 2.751);
    this.add(light2); // +x

    const light3 = new THREE.Mesh(geometry, createAreaLightMaterial(17));
    light3.position.set(14.904, 12.198, -1.832);
    light3.scale.set(0.15, 4.265, 6.331);
    this.add(light3); // +z

    const light4 = new THREE.Mesh(geometry, createAreaLightMaterial(43));
    light4.position.set(-0.462, 8.89, 14.520);
    light4.scale.set(4.38, 5.441, 0.088);
    this.add(light4); // -z

    const light5 = new THREE.Mesh(geometry, createAreaLightMaterial(20));
    light5.position.set(3.235, 11.486, -12.541);
    light5.scale.set(2.5, 2.0, 0.1);
    this.add(light5); // +y

    const light6 = new THREE.Mesh(geometry, createAreaLightMaterial(100));
    light6.position.set(0.0, 20.0, 0.0);
    light6.scale.set(1.0, 0.1, 1.0);
    this.add(light6);
  }

}

function createAreaLightMaterial(intensity) {
  const material = new THREE.MeshBasicMaterial();
  material.color.setScalar(intensity);
  return material;
}

THREE.RoomEnvironment = RoomEnvironment;
} )();
